Abstract
Purpose of Review
Today, the term lobular neoplasia (LN) incorporates atypical lobular hyperplasia (ALH), classical lobular carcinoma in situ (C-LCIS) and nonclassical lobular carcinoma in situ (NC-LCIS). These neoplastic lesions are thought of as risk indicators and non-obligate precursors of invasive breast cancer. This review highlights the current literature and up-to-date treatment recommendations for ALH, C-LCIS, and NC-LCIS.
Recent Findings
Currently, NC-LCIS requires surgical excision to rule out a concurrent carcinoma; but a core biopsy diagnosis of ALH or C-LCIS can be safely managed with close clinical and imaging observation, elevated future breast cancer risk counseling and consideration for chemoprevention. Controversy regarding categorizing NC-LCIS remains with respect to its histologic features and terminology.
Summary
The treatment and surveillance recommendations for LN continue to evolve. Overall, the treatment of LN requires a multidisciplinary approach to ensure appropriate screening and comprehensive counseling about the elevated lifetime breast cancer risk and about standard and investigational breast cancer risk-reducing options in this patient population.
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DiPasquale, A.M., Nakhlis, F. Lobular Neoplasia. Curr Breast Cancer Rep 12, 36–43 (2020). https://doi.org/10.1007/s12609-020-00353-4
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DOI: https://doi.org/10.1007/s12609-020-00353-4